Ventilating and heating attachment for stoves



P. K. MOMINN VENTILATING AND HEATING ATTACHMENT FOR STOVES Jan. 29, 1929.

Filed June 28. 1926 Inventor gjwmjm 21 W fia .imu/ orlley. a!

7 7/ ///Q M M E 4 D wmw 6 U 0 7 #J v fiwidm f 9 wfl z m 9 m 4 I 0 0 0 M B 2 z 6 B ,0J 6 1 Patented Jan. 29, 1929.

airs srrs PRESTON KING MOMINN, OF LITTLE ROCK, ARKANSAS.

VENTILATING AND HEATING ATTACHMENT FOR STOVLES.

Application filed June 28, 1926.

lhis invention relates to ventilating and heating attachments for stoves and has for one object toprovide a simple and inexpensive device for promoting the circulation of air in rooms in residences, school rooms, churches, halls and the like.

Another object of my invention is to provide, in a device of the character described, means for utilizing the heat in the flue gases from stoves so as to warm the air in said rooms and at the same time promote the circulation of said air in said rooms.

Another object is to provide, in a device of the character described, means for utilising the heat in flue gases from stoves so as to cause an ascending column of warm and foul air to pass out of said rooms, and at the same time to permit fresh or cold air toenter said rooms.

Another object of my invention is to provide, in a device of the character described, means for admitting cold air into overheated rooms for the purpose of cooling same and at the same time prevent the formation of drafts therein.

With the above and other objects in view the invention consists of the combination and arrangement of parts and in the details of construction hereinafter described, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the drawing:

Figure l is a side elevation of the invention.

Figure 2 is a top plan view.

Figure 3 is a section along the line 3-3 of Figure 2, showing the invention in use as a heater and ventilator.

Figure 4 is a section along the line 3-3 of Figure 2, showing the invention in use as a means of circulating the air. I

Referring now more particularly to the accompanying drawings, I provide a sheet metal heating drum A having passed therethrough in suitable apertures 9 the pipe B. A floor G having the fresh air opening 19 communicating by means of the pipe 20 with a suitable fresh air supply is adapted to have mounted thereon the heating pipe B so as to register with the opening 19.

A ventilating pipe D is mounted on the floor C, and a flue E is passed thru said pipe I) as by elbows 4, 4 and apertures 5, 5 A

Serial No. 118,917.

pipe 24 extends from said pipe I) and dis charges into the atmosphere.

An opening 6 is provided in the drum A and said drum is connected with stove (not shown) by a stove pipe 7. The elbow l connects said flue E with said drum A thru the opening 8 therein. The elbow 4 connects said flue E with the atmosphere as by a pipe-1O.

A damper 12 hinged as at 13 so as to open downwardly and inwardly is adapted to close the aperture 11 provided in the pipe B. A damper 16 is hinged as at 17 so as to open downwardly and inwardly and adapted to close the aperture 18 provided in the pipe I) facing the aforesaid aperture 11. A link 14 pivotally connects said damper 12 with said damper 16 so that when one damper is closed the other is opened. A handle 15 is pro vided on the link 14: for purposes of manipulation.

A damper 22 is hinged as at 23 so asto open upwardly and inwardly and is adapted to close the aperture 21 provided in the pipe B and positioned above said aperture 11. A handle 25 is provided on said damper 22 for purposes of manipulation.

The dampers 12 and 22 are constructed in an elliptical shape so as to be adapted when open to close off said pipe B.

In use, warm flue gases from a stove (not shown) are passed through drum A and flue E, whereby air in pipe B and pipe D is warmed, thus causing the upward movement of said air in said pipes. In Figure 3 the damper 12 is closed and the damper 16 is open, so that fresh air introduced into the pipe B through the opening 19. may pass upwardly through said pipe B and be warmed by the said flue gases in'the drum A; and

air from the room in which the apparatus is placed'may be drawn therefrom through the aperture 18 and pass to the atmosphere through said pipe D and pipe 24. At the same time by manipulation of the damper 22 all or a part of the fresh air passing throughsaid pipe B may be diverted from said drum A and caused to pass without be ing heated into said room through the aperture 21. In Figure 4:, the damper 12 is open and the lower portion of the pipe B isclosed to prevent the flow of air from the fresh air pipe 20 to the pipe D; air is now drawn from the said room and caused to pass up wardly through said pipe B, the damper 22 being manipulated as before described. At

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the same time the damper 16 is now closed thus preventing the passage of air through said pipe D. Any intermediate position of the dampers as described may be chosen whereby the desired heating and ventilating of the said room may be established.

Having described my invention, What I claim is:

1. In a stove attachment of the class described the combination with a stove pipe of a vertical fresh air inlet pipe communicating at its lower end with the atmosphere and at its upper end with the interior of an apartment, a vertical ventilating pipe spaced from the fresh air inlet pipe and communicating at its upper end with the atmosphere, a drum surrounding the upper portion of the fresh air inlet pipe and connected at its lower portion with the stove pipe, a fine connected with the upper portion oi the drum and having a portion located within the ventilating pipe for producing an upward circulation of air through the same, dampers located at the lower ends of the fresh air pipe and ventilating pipe and controlling openings in the same, the damper of the fresh air inlet pipe being also adapted to close the latter, and means connecting the said dampers for causing simultaneous operation of the same and an rang-ed to simultaneously close one damper and open the other.

2. A stove attachment of the class described, comprising a vertical fresh air inlet pipe communicating at its lower end with the atmosphere and at its upper end with the interior of an apartment, a vertical ventilating pipe spaced from the fresh air inlet pipe and communicating at its upper end with the atmosphere, a drum surrounding the upper portion of the fresh air inlet pipe and connected at its lower portion with a stove pipe, a fine connected with the upper portion of the drum and having a portion located within the ventilating pipe for producing an upward circulation of air through the same, dampers located at the lower ends of the fresh air pipe and ventilating pipe and controlling openings in the same, the damper of the fresh air inlet pipe being also adapted to close the latter, means connecting the said dampers for causing simultaneous movement of the same and arranged to simultaneously close one damper and open the other, and a third damper controlling an opening in the inlet pipe and located between the drum and the said damper of the air inlet pipe.

In testimony whereof I afiix my signature.

PRESTON KING MCMINN. 

